CN202084822U - Contact head box for 40.5KV high voltage switch equipment - Google Patents
Contact head box for 40.5KV high voltage switch equipment Download PDFInfo
- Publication number
- CN202084822U CN202084822U CN2011201677232U CN201120167723U CN202084822U CN 202084822 U CN202084822 U CN 202084822U CN 2011201677232 U CN2011201677232 U CN 2011201677232U CN 201120167723 U CN201120167723 U CN 201120167723U CN 202084822 U CN202084822 U CN 202084822U
- Authority
- CN
- China
- Prior art keywords
- contact head
- contact box
- box body
- head box
- high voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a contact head box for 40.5KV high voltage switch equipment, which comprises a contact head box body, wherein the internal wall of the contact head box body is provided with an internal shield coating, the bottom of the contact head box body is provided with a fixed contact head installation insert, and the internal shield coating is electrically connected with the fixed contact head installation insert. The contact head box has a compact structure, not only guarantees the insulation effect, but also realizes miniature, adopts conductive paint as the internal shield coating, thus being simple in process and small in occupied space, a rubber strip is installed at he external side of the contact head box body, thus effectively eliminating interphase electricity discharge generated by the contact head box due to suspension electric potential when in running process, the radiating structure is reasonable, the fixed contact head of the contact head box body is provided with radiating holes, thus being convenient for radiating, and leading the contact head box to be applicable to multiple current levels containing large current and other various current grades.
Description
[technical field]
The utility model belongs to technical field of electricity, particularly a kind of contact box.
[background technology]
Metal enclosed switchgear, high pressure elements such as circuit breaker, isolating switch, earthed switch, instrument transformer are equipped with in its inside, and they form complete switchgear jointly.
Switch cubicle can be divided into handcart-type and fixed two kinds from the mounting structure of circuit breaker and isolating switch.For the handcart switch cabinet of 40.5kV electric pressure, contact box is a key element in the cabinet, and the Insulation Problems that how to solve contact box is again the key of contact box design.In addition, guaranteeing under the situation of dielectric strength, simplified structure how, cost is saved in weight reduction, also is very crucial.
[utility model content]
The purpose of this utility model provides a kind of 40.5kV high voltage switchgear contact box, to solve the problems of the technologies described above.
To achieve these goals, the utility model adopts following technical scheme:
A kind of 40.5kV high voltage switchgear contact box comprises the contact box body, and described contact box inner body wall is provided with the inner shield coating, and contact box body bottom is provided with fixed contact inserts is installed; Described inner shield coating electrically connects described fixed contact inserts is installed.
Described contact box body is provided with that the handcart contact arm enters the hole and busbar portals; Described handcart contact arm advances to be provided with an embedded metal ring in the hole, and described embedded metal ring embeds in the inwall of described contact box body; Described inner shield coating electrically connects the embedded metal ring.
The embedded metal ring is arranged at inner shield coating end.
Described inner shield coating is one deck conductive paint coating.
Described contact box body periphery is provided with full skirt.
Have groove on the contact box body, in the described groove rubber strip is housed.
The material of described contact box body is an epoxy resin.
Offer some heat radiation holes on the described contact box body.
Compared with prior art, the utlity model has following advantage:
1, the utility model contact box structure compactness had both guaranteed insulation effect, realized miniaturization again;
2, adopt the conductor lacquer as internal shield, processing is simple, and it is little to take up room;
3, the contact box body outside is equipped with rubber strip, the alternate electric discharge phenomena that contact box produces because of floating potential in the time of can effectively eliminating operation;
4, radiator structure is reasonable, and the contact box body has the hole of heat radiation in the part of fixed contact, is convenient to the heat radiation of fixed contact, makes contact box to be suitable for to comprise the multiple current class of big electric current.
[description of drawings]
Fig. 1 is the external structure schematic diagram of the utility model contact box;
Fig. 2 is the cutaway view of contact box shown in Figure 1.
[embodiment]
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
See also Figure 1 and Figure 2, a kind of 40.5kV high voltage switchgear of the utility model contact box comprises fixed contact installation inserts 1 and contact box body 2; The material of contact box body 2 is an epoxy resin.
Fixed contact is installed inserts 1 and is cast in the contact box body 2; Fixed contact is installed on the inserts 1 can install fixed contact and branch bar, and fixed contact and branch bar can make main bus bar realize being communicated with of circuit with circuit breaker.
The inwall of contact box body 2 is provided with inner shield coating 3, and inner shield coating 3 is a kind of conductive paint coatings, and the characteristics of this coating are that resistivity is low, is difficult for oxidation, strong adhesion, good heat resistance having under the situation of protection.Inner shield coating 3 is installed inserts 1 with fixed contact and is connected, and finally is connected with fixed contact box branch bar, forms equipotential connection.Inner shield coating 3 is uniform electric field effectively, improves the withstand voltage level of product.
Embedded metal ring 4 embeds the inwall of contact box body 2, and the end that connects inner shield coating 3 is used to change the concentrated situation of electric field of inner shield coating 3 ends, makes that inner shield coating 3 end electric fields are even.
Claims (8)
1. a 40.5kV high voltage switchgear contact box comprises contact box body (2), it is characterized in that: described contact box body (2) inwall is provided with inner shield coating (3), and contact box body (2) bottom is provided with fixed contact inserts (1) is installed; Described inner shield coating (3) electrically connects described fixed contact inserts (1) is installed.
2. a kind of 40.5kV high voltage switchgear contact box as claimed in claim 1 is characterized in that: described contact box body (2) is provided with the handcart contact arm and advances hole (5) and busbar portal (6); Described handcart contact arm advances to be provided with an embedded metal ring (4) in the hole (5), and described embedded metal ring (4) embeds in the inwall of described contact box body (2); Described inner shield coating (3) electrically connects embedded metal ring (4).
3. a kind of 40.5kV high voltage switchgear contact box as claimed in claim 2 is characterized in that: embedded metal ring (4) is arranged at inner shield coating (3) end.
4. as each described a kind of 40.5kV high voltage switchgear contact box in the claim 1 to 3, it is characterized in that: described inner shield coating (3) is one deck conductive paint coating.
5. a kind of 40.5kV high voltage switchgear contact box as claimed in claim 4 is characterized in that: described contact box body (2) periphery is provided with full skirt (20).
6. a kind of 40.5kV high voltage switchgear contact box as claimed in claim 4 is characterized in that: have groove (21) on the contact box body (2), described groove is equipped with rubber strip in (21).
7. a kind of 40.5kV high voltage switchgear contact box as claimed in claim 4, it is characterized in that: the material of described contact box body (2) is an epoxy resin.
8. a kind of 40.5kV high voltage switchgear contact box as claimed in claim 4 is characterized in that: offer some heat radiation holes on the described contact box body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201677232U CN202084822U (en) | 2011-05-24 | 2011-05-24 | Contact head box for 40.5KV high voltage switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201677232U CN202084822U (en) | 2011-05-24 | 2011-05-24 | Contact head box for 40.5KV high voltage switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084822U true CN202084822U (en) | 2011-12-21 |
Family
ID=45345439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201677232U Expired - Lifetime CN202084822U (en) | 2011-05-24 | 2011-05-24 | Contact head box for 40.5KV high voltage switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966994A (en) * | 2015-07-16 | 2015-10-07 | 浙江雷安电气有限公司 | Three-phase shielding contact box |
-
2011
- 2011-05-24 CN CN2011201677232U patent/CN202084822U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966994A (en) * | 2015-07-16 | 2015-10-07 | 浙江雷安电气有限公司 | Three-phase shielding contact box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |
|
| CX01 | Expiry of patent term |